These are the inner foam, and inner pleated pre-motor filters for the Bissell CleanView Helix bagless upright models 21K3, 22C1, and 82H1. Both filters should be taken out and washed on a monthly basis. The foam filter and the pleated filter should be completely air dried before reinstalling the filters. After 10-12 washings it's recommended that both filters be replaced. Genuine Bissell Filter combo part number 32R9, UPC 01112014341.